It looks like they have a really difficult problem to solve. I think it is a shame that the people who are complaining are core professionals who just want to earn a living. I don't think Apple can afford to chease these people off.

While I have Had crashes on FCP 3 on a DP867, they haven't been many and when they happened I was doing things that maybe I shouldn't have been doing while learning the software!
So far maybe 5 crahes in about a month and all have been understandable, been using command-s alot since and haven't lost anything yet.
Still Mac and OS X rock over the competition!